Set of 20 loop cards with simple mental percentages (10%, 25% and 50%); could be done as a traditional class loop activity or as a domino card match in pairs.

• Mental percentages loop cards
  

This lesson is based on a fantastic resource from jlcaseyuk (via TES) - this is a set of cards with details of different bank accounts, including simple and compound interest, annual, monthly and quarterly interest payments. I adapted this and created a presentation as I felt my class needed more structure than just "here's a set of cards", hence plenty of worked examples for them to follow.

I also split the cards into annual, quarterly and monthly interest payments and printed onto red, orange and green paper respectively, allowing me to direct the pupils towards particular sets of cards.

• Presentation for full lesson
  
• Cards split into annual, quarterly and monthly
  

Rally Coach activity for basic percentage calculations, including non-calculator increases and decreases.